EP 3221963 B1 20190731 - POWER AMPLIFIER FOR AMPLIFYING RADIO FREQUENCY SIGNAL
Title (en)
POWER AMPLIFIER FOR AMPLIFYING RADIO FREQUENCY SIGNAL
Title (de)
LEISTUNGSVERSTÄRKER ZUR VERSTÄRKUNG VON FUNKFREQUENZSIGNALEN
Title (fr)
AMPLIFICATEUR DE PUISSANCE PERMETTANT D'AMPLIFIER UN SIGNAL RADIOÉLECTRIQUE
Publication
Application
Priority
- US 201414543635 A 20141117
- US 2015059802 W 20151110
- CN 201410643351 A 20141114
Abstract (en)
[origin: US2016142020A1] Power amplifiers for amplifying a radio frequency signal are provided. The power amplifier may include an envelope tracking power supply, a carrier amplifier coupled with the envelope tracking power supply and configured to amplify the radio frequency signal, an input matching network configured to split the amplified radio frequency signal from the carrier amplifier such that one part of the amplified radio frequency signal passes along a peak amplifier path and another part of the amplified radio frequency signal passes along an impedance transformer path, a peak amplifier coupled with the envelope tracking power supply and configured to amplify the one part of the amplified radio frequency signal from the input matching network, an impedance transformer configured to perform impedance transformation on the other part of the amplified radio frequency signal from the input matching network, an output matching network configured to combine the output of the peak amplifier and the impedance transformer, wherein the peak amplifier is configured to be switched off in a lower power mode and switched on in a high power mode based at least in part on an input power level of the radio frequency signal. With the claimed solutions, more powerful and efficient power amplifiers that are capable of operating over broader frequency ranges may be achieved.
IPC 8 full level
H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01)
CPC (source: CN EP KR US)
H03F 1/0222 (2013.01 - EP US); H03F 1/0227 (2013.01 - CN EP KR US); H03F 1/0288 (2013.01 - CN EP KR US); H03F 1/565 (2013.01 - CN EP KR US); H03F 3/19 (2013.01 - US); H03F 3/191 (2013.01 - EP US); H03F 3/195 (2013.01 - CN EP KR US); H03F 3/245 (2013.01 - CN EP KR US); H03F 2200/102 (2013.01 - EP US); H03F 2200/111 (2013.01 - CN EP KR US); H03F 2200/222 (2013.01 - CN EP KR US); H03F 2200/318 (2013.01 - CN EP KR US); H03F 2200/387 (2013.01 - CN EP KR US); H03F 2200/405 (2013.01 - CN EP KR US); H03F 2200/408 (2013.01 - CN EP KR US); H03F 2200/411 (2013.01 - CN EP US); H03F 2200/432 (2013.01 - CN EP US); H03F 2200/451 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2016142020 A1 20160519; US 9853603 B2 20171226; AU 2015346591 A1 20170511; BR 112017007204 A2 20171212; CA 2965692 A1 20160519; CN 107112953 A 20170829; CN 107112953 B 20201002; EP 3221963 A1 20170927; EP 3221963 B1 20190731; JP 2017534219 A 20171116; KR 102533919 B1 20230517; KR 20170134312 A 20171206; MX 2017005869 A 20170626; RU 2017116538 A 20181113; WO 2016077257 A1 20160519
DOCDB simple family (application)
US 201414543635 A 20141117; AU 2015346591 A 20151110; BR 112017007204 A 20151110; CA 2965692 A 20151110; CN 201580061792 A 20151110; EP 15797555 A 20151110; JP 2017525367 A 20151110; KR 20177016393 A 20151110; MX 2017005869 A 20151110; RU 2017116538 A 20151110; US 2015059802 W 20151110